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Yingli Green Energy Holding’s advised that its multicrystalline PV modules had undergone, and successfully passed, potential induced degradation (PID) testing, which was conducted by Intertek Group. The test analysed the power output of Yingli Solar’s PV modules under sever conditions of high voltage, temperature and humidity.
The company stated that its modules passed PID testing with high marks. The PID test was carried out under 85 degree conditions with 85% relative humidity and 1,000V of system voltage bias for a duration of 48 hours. According to Intertek results, Yingli Solar modules had a power degradation of less than 1%. Furthermore, Intertek also tested the modules for 96 hours and found that they still remained under a 1% degradation level.
"We are very glad to see the outstanding performance of our modules on the PID test conducted by Intertek," said Liansheng Miao, chairman and chief executive officer of Yingli Green Energy. "The test results highlight the high quality of our products, which has been our firm commitment to customers. We expect this excellent PID test result to further strengthen customers' confidence in our products and enhance our leadership position in the solar industry."